Light weight and flexible poly(ether ether ketone) based composite film with excellent thermal stability and mechanical properties for wide-band electromagnetic interference shielding.
Light weight and flexible poly(ether ether ketone) based composite film with excellent thermal stability and mechanical properties for wide-band electromagnetic interference shielding.
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DOI：
10.1039/c7ra11675f
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发表时间：
2018-01-12
期刊：
影响因子：
3.9
通讯作者：
Zhang, Shuling
中科院分区：
文献类型：
--
作者：
Na, Ruiqi;Liu, Jinying;Wang, Guibin;Zhang, Shuling
本研究提出了一种制备具有优异热稳定性和机械性能的轻质柔性宽带电磁干扰（EMI）屏蔽复合膜的有效方法，该复合膜是通过熔融共混和随后的熔融挤出来制备的。以聚醚醚酮（PEEK）为基体，多壁碳纳米管包裹聚（醚砜）（包裹的MWCNT）作为导电填料，和GENIOPLAST® PELLET S（GPPS，高温润滑剂）作为加工助剂。GPPS首先用于EMI应用，以降低PEEK的熔体粘度以及改善包裹的MWCNT的分散性，这使其能够制造厚度为180 μm的高效EMI屏蔽（<74.6 dB mm−1）PEEK/包裹的MWCNT/GPPS1.0复合膜。此外，轻质复合膜表现出高的热稳定性（即586 °C的5%质量损失下的降解温度）和良好的机械性能（101 MPa的拉伸强度），上级其他先前报道的EMI屏蔽膜。上述增强的性能证明了其作为高性能EMI屏蔽件的潜在应用，用于某些应用，例如航空航天、武器和微电子工业，这些应用要求材料表现出EMI屏蔽以及上级机械性能和热稳定性。利用包覆的多壁碳纳米管和高温润滑剂生产具有优异的热稳定性和机械性能的轻质柔性聚醚醚酮复合膜，用于宽带电磁干扰屏蔽。
This study proposes an efficient method for fabricating a light weight and flexible composite film with excellent thermal stability and mechanical properties for wide-band electromagnetic interference (EMI) shielding, which was prepared by melt blending and subsequent melt extrusion using poly(ether ether ketone) (PEEK) as a matrix, multi-walled carbon nanotube wrapped poly(ether sulfone) (wrapped MWCNTs) as a conductive filler, and GENIOPLAST® PELLET S (GPPS, high-temperature lubricant) as a processing aid. GPPS was firstly used in EMI application, to reduce the melt viscosity of PEEK as well as to improve the dispersion of wrapped MWCNTs, which enables it to fabricate a highly efficient EMI shielding (∼74.6 dB mm−1) PEEK/wrapped MWCNT/GPPS1.0 composite film with a thickness of 180 μm. Furthermore, the lightweight composite film exhibits high thermal stability (i.e. degradation temperature at 5% mass loss of 586 °C) and good mechanical properties (tensile strength of 101 MPa), being superior to other previously reported EMI shielding films. The above mentioned enhanced property demonstrated its potential application as a high performance EMI shield for certain applications such as in the aerospace, weapons, and microelectronics industries, which require materials exhibits EMI shielding as well as superior mechanical properties and thermal stability. Capitalizing on wrapped MWCNTs and high-temperature lubricants produce a light weight and flexible poly(ether ether ketone) composite film with excellent thermal stability and mechanical property for wide-band electromagnetic interference shielding.
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影响因子：
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作者：
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影响因子：
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